Home / 12,163.30-18,245.84-4,372.18

Finding the Fourth Proportional to 12,163.30, 18,245.84 and 4,372.18

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Solution

The fourth proportional to 12,163.30, 18,245.84 and 4,372.18 is: 6,558.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,163.30 : 18,245.84 = 4,372.18 : x
  2. Step 2: Convert to fraction form
    12,163.30/18,245.84 = 4,372.18/x
  3. Step 3: Cross multiply
    12,163.30x = 18,245.84 × 4,372.18
  4. Step 4: Simplify right side
    12,163.30x = 79,774,096.73
  5. Step 5: Solve for x
    x = 79,774,096.73/12,163.30
  6. Step 6: Final answer
    x = 6,558.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.